1. someone who acts unusually strange compared to their usual behavior. 2. an inatimate object (such as a camera or microwave) that isn't working the way you were told it would when you bought it for 5 bucks off ebay

1. Jeez, why is Mikey acting so wierdy this week? He's being such a chigger!
2. This camera is being so wierdy!! I knew that jerk-off on ebay wasn't giving me a real discount!! Where's my 49?